71370220

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{10781}}^1$

素因数の和:11121

約数の個数: 24

約数和(自身を含む): 150344208

約数和(自身を除く): 78973988

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 10781, 21562, 43124, 53905, 107810, 215620, 3568511, 7137022, 14274044, 17842555, 35685110, 71370220]

約数ペア:

[(1, 71370220), (2, 35685110), (4, 17842555), (5, 14274044), (10, 7137022), (20, 3568511), (331, 215620), (662, 107810), (1324, 53905), (1655, 43124), (3310, 21562), (6620, 10781)]